package gg.zsw.java.exception;

/**
 * @author zhou.sw
 * @Date 2020/8/27 17:14
 */
public class ExceptionDemo {

    public static void main(String[] args) {
//        java.lang.NumberFormatException: For input string: ""
//        System.out.println(Long.valueOf(""));

//        java.lang.NullPointerException
        Long l = null;
        System.out.println(Long.valueOf(l));
    }



}
